O.C. Carried Along on Market’s Bumpy Ride : Following the Market

The Bloomberg Orange County Index, a weighted index designed to measure the performance of major Orange County stocks, fell 2.4 points on Monday. Hourly closing prices, Eastern standard time:

10:30 a.m.: 130.79

Market close: 128.81

Losing Stocks

Twenty Orange County stocks with the largest percent decrease in value:

1. Cortex Pharmaceuticals: -17.4%

Irvine, Pharmaceuticals

2. Quality Systems: -11.5

Tustin, Computer systems

3. WFS Financial: -10.7

Irvine, Auto loans

4. Wonderware: -10.6

Irvine, Computer software

5. Smartflex Systems: -9.52

Tustin, Electronic assembly products

6. TouchStone Software: -9.09

Huntington Beach, Computer maintenance software

7. Datum: -8.79

Anaheim, Precision instruments

8. Graphix Zone: -7.41

Irvine, Multimedia software

9. Metalclad Corp.: -7.14

Newport Beach, Insulation installation and removal

10. PairGain Technologies: -6.50

Tustin, Telecommunications software

11. Emulex: -6.42

Costa Mesa, Network systems

12. Safeguard Health Enterprises: -6.25

Anaheim, Dental care plan

13. Aurora Electronics: -5.88

Irvine, Reconditioned integrated circuits

14. Platinum Software Corp.: -5.62

Irvine, Computer software

15. Advanced Logic Research: -5.56

Irvine, Computers

16. First American Financial: -5.48

Santa Ana, Title insurance

17. Bridgford Foods: -5.41

Anaheim, Food products

18. Cocensys Inc.: -5.36

Irvine, Neuro-pharmaceutical products

19. Printronix Inc.: -5.34

Irvine, Computer printers

20. ICN Pharmaceuticals: -5.26

Costa Mesa, Pharmaceuticals

List includes only stocks that sell above $2 per share. Source: Bloomberg Business News; Researched by JANICE L. JONES / Los Angeles Times